/*
 * @Author: chen haoxuan
 * @Date: 2021-05-10 22:34:29
 * @LastEditTime: 2021-05-10 22:36:11
 */
#include <iostream>
using namespace std;
class Student
{
public:
    Student(int n, float s) : num(n), score(s) {}
    void change(int n, float s)
    {
        num = n;
        score = s;
    }
    void display() { cout << num << " " << score << endl; }

private:
    int num;
    float score;
};
int main()
{
    Student stud(101,78.5);
    Student *p=&stud;
    p->display();
    p->change(101,80.5);
    p->display();
    system("pause");
}